/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.jca.ra;
import com.caucho.jca.cfg.ResourceAdapterConfig;
import com.caucho.loader.EnvironmentClassLoader;
import com.caucho.loader.EnvironmentLocal;
import com.caucho.util.L10N;
import java.util.ArrayList;
import java.util.logging.Logger;
/**
* Manages the resource archives.
*/
public class ResourceArchiveManager {
static final L10N L = new L10N(ResourceArchiveManager.class);
static final Logger log
= Logger.getLogger(ResourceArchiveManager.class.getName());
private static final EnvironmentLocal<ResourceArchiveManager> _localManager
= new EnvironmentLocal<ResourceArchiveManager>();
private ArrayList<ResourceArchive> _resources
= new ArrayList<ResourceArchive>();
/**
* Creates the application.
*/
private ResourceArchiveManager()
{
}
/**
* Adds a new resource.
*/
static void addResourceArchive(ResourceArchive rar)
{
ResourceArchiveManager raManager = _localManager.getLevel();
if (raManager == null) {
raManager = new ResourceArchiveManager();
_localManager.set(raManager);
}
raManager._resources.add(rar);
}
/**
* Adds a new resource.
*/
static void removeResourceArchive(String name)
{
ResourceArchiveManager raManager = _localManager.getLevel();
if (raManager == null)
return;
ResourceArchive rar = raManager.getResourceArchive(name);
if (rar != null) {
raManager._resources.remove(rar);
rar.destroy();
}
}
/**
* Finds a resource.
*/
public static ResourceArchive findResourceArchive(String name)
{
ClassLoader loader = Thread.currentThread().getContextClassLoader();
for (; loader != null; loader = loader.getParent()) {
if (loader instanceof EnvironmentClassLoader) {
EnvironmentClassLoader envLoader = (EnvironmentClassLoader) loader;
ResourceArchiveManager manager = _localManager.getLevel(envLoader);
if (manager != null) {
ResourceArchive ra = manager.getResourceArchive(name);
if (ra != null)
return ra;
}
}
}
return null;
}
/**
* Returns the resource archive in the manager.
*/
private ResourceArchive getResourceArchive(String type)
{
for (int i = 0; i < _resources.size(); i++) {
ResourceArchive ra = _resources.get(i);
if (type.equals(ra.getDisplayName()))
return ra;
}
for (int i = 0; i < _resources.size(); i++) {
ResourceArchive ra = _resources.get(i);
ResourceAdapterConfig raConfig = ra.getResourceAdapter();
if (raConfig == null)
continue;
Class resourceAdapterClass = raConfig.getResourceadapterClass();
if (resourceAdapterClass != null
&& type.equals(resourceAdapterClass.getName()))
return ra;
}
for (int i = 0; i < _resources.size(); i++) {
ResourceArchive ra = _resources.get(i);
if (ra.getConnectionDefinition(type) != null)
return ra;
}
for (int i = 0; i < _resources.size(); i++) {
ResourceArchive ra = _resources.get(i);
if (ra.getMessageListener(type) != null)
return ra;
}
return null;
}
/**
* Returns the resource archive in the manager.
*/
private ResourceArchive getResourceArchiveByType(Class type)
{
for (int i = 0; i < _resources.size(); i++) {
ResourceArchive ra = _resources.get(i);
ResourceAdapterConfig raConfig = ra.getResourceAdapter();
if (raConfig == null)
continue;
Class resourceAdapterClass = raConfig.getResourceadapterClass();
if (type.equals(resourceAdapterClass))
return ra;
}
for (int i = 0; i < _resources.size(); i++) {
ResourceArchive ra = _resources.get(i);
if (ra.getConnectionDefinition(type.getName()) != null)
return ra;
}
for (int i = 0; i < _resources.size(); i++) {
ResourceArchive ra = _resources.get(i);
if (ra.getMessageListener(type.getName()) != null)
return ra;
}
return null;
}
}